This article applies to 123-reg servers running Plesk.
This article will explain how you can change the webmail used on your 123-reg server running Plesk
Please select the version of Plesk you are using below.
Login to your Parallels Plesk Panel.
Click on the Domains link on the left panel.
Click on the relevant Control panel link.
Click on the Mail tab.
Click on the Change Settings button.
Select the webmail that you would like to use from the drop down menu and click on the OK button.
Click on the Domain name link for the relevant domain name.
Watch the content of this article for changes.